杂交稻制种田稻蓟马的防治袁子鸿（永丰县种子公司３３１５００）稻蓟马体小繁殖快，一年可发生１０多代，世代重叠，其中以５月上旬至７月上旬间的三、四、五代危害杂交稻制种田最重。我县杂交稻制种多在５月上旬播种，正值稻蓟马繁殖危害的始盛期，父本秧苗２～３叶期就... Prevention and treatment of rice thrips in hybrid rice farming Yuan Zizhong (Yongfeng County Seed Company 331500) The thrips thrips are small in size and can reproduce for more than 10 generations a year, with overlapping generations. Among them, from early May to early July, Fourth and fifth generation endanger the hybrid rice farming the heaviest. My county hybrid rice and more sown in early May, coincided with the beginning of the thrips breeding threatening, male parent 2 to 3 leaf stage ...